Colonia, NJ Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Colonia, a community in Middlesex County, New Jersey.
This Afternoon
72°F
Mostly Sunny
Mostly sunny. High near 72, with temperatures falling to around 70 in the afternoon. Southeast wind around 7 mph.
7-day forecast for Colonia
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 72°F | Mostly Sunny | 7 mph SE | 1% |
| Tonight | 60°F | Mostly Cloudy | 3 to 7 mph SE | 4% |
| Sunday | 72°F | Rain Showers | 5 to 8 mph SE | 87% |
| Sunday Night | 59°F | Showers And Thunderstorms | 5 to 10 mph W | 75% |
| Monday | 68°F | Chance Rain Showers | 7 to 12 mph N | 38% |
| Monday Night | 54°F | Chance Rain Showers | 7 to 10 mph NE | 26% |
| Tuesday | 63°F | Chance Rain Showers | 13 mph NE | 31% |
| Tuesday Night | 52°F | Chance Rain Showers | 13 mph NE | 27% |
| Wednesday | 64°F | Slight Chance Rain Showers | 13 to 16 mph NE | 24% |
| Wednesday Night | 52°F | Chance Rain Showers | 15 mph NE | 31% |
| Thursday | 63°F | Chance Rain Showers | 16 mph NE | 33% |
| Thursday Night | 51°F | Chance Rain Showers | 10 to 15 mph NE | 36% |
| Friday | 65°F | Chance Rain Showers | 13 mph N | 34% |
| Friday Night | 52°F | Chance Rain Showers | 13 mph N | 31% |
Forecast source: National Weather Service (api.weather.gov) for Colonia (40.589, -74.311). Updated through the day.
Growing snapshot for Colonia
Last spring frost
Apr 11
First fall frost
Oct 28
Growing season
198 days
Hardiness zone
7a
More local growing data for Colonia: nearby ZIP 07067 weather · frost dates · planting calendar · New Jersey frost dates
Nearby towns & communities
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Highland Park
Hopelawn
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Middlesex
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New Brunswick
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Climate data from the nearest NOAA station, Plainfield, Nj (4.9 mi from Colonia). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.